1 666 to 1 680 0 008 and 1 606 to 1 632 0 009 0 006 birefringence. Tourmaline for example comes in every possible color unless a gem has an exceptionally pure green red or pink hue color affects the value of all tourmalines equally. Ancient records show that the chinese started to dye jade to improve the color in 13th century. Jade jewelry such as bracelets and necklaces are highly prized. Few gems have the mystique of jade a stone that has been revered in china for more than 4000 years.
It is so expensive that its cost ranges in millions of dollars. There is a strong line at 4375 and weak bands at 4500 and 4330. Average retail prices dec 2020. Tests and observations irregularities mean it s probably real. Jadeite is rarer than nephrite and is therefore regarded as more precious.
For each gemstone we provide a detailed and comprehensive value chart which will help you evaluate its price based on the following criteria. One of the key qualities of the gemstone is color. It is a pristine gemstone with color that is penetrating bereft any gray shade. Green white orange yellow lavender black refractive index. Jade stones are found in green lavender red yellow white and black colors with a translucent and waxy lusture.
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The costliest jadeite is the imperial jade that is a semi transparent stone with emerald green tinge. Color grades for moderate value colored gems. Strong line at 6915 weak at 6550 and 6300. Jade is also one of the most misunderstood of gems there is widespread confusion about the types of jade about the most valuable colors and the standards used to grade it. Color has less of an effect on the gem grading and value of moderately priced gems.Hold it up to a bright light. The 4375 line is diagnostic but may not be seen in rich deep green material which has a chromium spectrum. These items hold economic and sentimental value for people around the world. If you are about to go shopping for jade or have an old piece of jade here is an article that will help you tell if you have found the real thing. Raw jade the raw jade market is a fascinating exchange comprised of gem traders willing to gamble on the quality of large stones and boulders recovered from mines.
Jade is used in many ways and is commonly found affixed to jewelry. Our value charts are based on accurate and up to date information on average retail prices. Color carat weight clarity cut. Jadeite has a distinctive spectrum useful in identification. The precise value of jade depends on several factors.
The precise value of jade depends on several factors. Jade is used in many ways and is commonly found affixed to jewelry. Hold it up to a bright light. The costliest jadeite is the imperial jade that is a semi transparent stone with emerald green tinge. For each gemstone we provide a detailed and comprehensive value chart which will help you evaluate its price based on the following criteria.
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Jadeite has a distinctive spectrum useful in identification. It is so expensive that its cost ranges in millions of dollars. 1 666 to 1 680 0 008 and 1 606 to 1 632 0 009 0 006 birefringence.
